CA2054136A1 - Hearing aid - Google Patents
Hearing aidInfo
- Publication number
- CA2054136A1 CA2054136A1 CA2054136A CA2054136A CA2054136A1 CA 2054136 A1 CA2054136 A1 CA 2054136A1 CA 2054136 A CA2054136 A CA 2054136A CA 2054136 A CA2054136 A CA 2054136A CA 2054136 A1 CA2054136 A1 CA 2054136A1
- Authority
- CA
- Canada
- Prior art keywords
- filter
- amplifier
- hearing aid
- microphone
- emphasis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/502—Customised settings for obtaining desired overall acoustical characteristics using analog signal processing
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Networks Using Active Elements (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Amplifiers (AREA)
Abstract
A hearing aid with a microphone, with at least one amplifier fed with the signals from said microphone, whereby said amplifier cooperates with a filter of a higher order for influencing the frequency response, and with a loudspeaker which transforms the amplified signals into soundwaves. This filter (3) can be arranged in the conventional manner between two amplification stages or in the feedback loop of the amplifier (6). In order to allow the optimal adjustment of the frequency response to the respective requirements it is provided in this hearing aid that the filter (3) is arranged as a multiple filter with a biquadratic structure and comprises at least two integrators and an inverting amplifier, whereby the active elements of their components are formed by transistors, preferably single transistors (T1, T2, T3). The feedback loop of the amplifier (6) is guided through an adjustable potentiometer (RA) for setting the filter emphasis or de-emphasis and in the filter circuit (3) there is arranged an adjustable potentiometer (RF) for setting the mid-frequency of the filter (3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA2237/90 | 1990-11-07 | ||
AT0223790A AT407103B (en) | 1990-11-07 | 1990-11-07 | HEARING AID WITH FILTER CIRCUIT |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2054136A1 true CA2054136A1 (en) | 1992-05-08 |
CA2054136C CA2054136C (en) | 1995-04-25 |
Family
ID=3530575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002054136A Expired - Fee Related CA2054136C (en) | 1990-11-07 | 1991-10-24 | Hearing aid |
Country Status (6)
Country | Link |
---|---|
US (1) | US5263089A (en) |
EP (1) | EP0485357B1 (en) |
AT (1) | AT407103B (en) |
CA (1) | CA2054136C (en) |
DE (1) | DE59107507D1 (en) |
DK (1) | DK0485357T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5909497A (en) * | 1996-10-10 | 1999-06-01 | Alexandrescu; Eugene | Programmable hearing aid instrument and programming method thereof |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5406633A (en) * | 1992-11-03 | 1995-04-11 | Auditory System Technologies, Inc. | Hearing aid with permanently adjusted frequency response |
US7010136B1 (en) * | 1999-02-17 | 2006-03-07 | Micro Ear Technology, Inc. | Resonant response matching circuit for hearing aid |
WO2001070110A1 (en) * | 2000-03-24 | 2001-09-27 | Franz Burkhard K H G | Method and apparatus for treating tinnitus |
US8027799B2 (en) * | 2007-11-28 | 2011-09-27 | Honeywell International Inc. | Digital potentiometer system |
US20230336926A1 (en) * | 2019-10-16 | 2023-10-19 | Nuance Hearing Ltd. | Beamforming devices for hearing assistance |
DE102022111300A1 (en) | 2022-05-06 | 2023-11-09 | Elevear GmbH | Device for reducing noise when reproducing an audio signal with headphones or hearing aids and corresponding method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1294456C2 (en) * | 1966-08-01 | 1976-02-05 | Siemens AG, 1000 Berlin und 8000 München | MILLER INTEGRATOR |
US3619659A (en) * | 1969-12-02 | 1971-11-09 | Honeywell Inf Systems | Integrator amplifier circuit with voltage regulation and temperature compensation |
DE2658301C2 (en) * | 1976-12-22 | 1978-12-07 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Hearing aid |
DE2813946C2 (en) * | 1978-03-31 | 1980-01-31 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Filter circuit with a biquadratic transfer function |
US4453132A (en) * | 1982-04-21 | 1984-06-05 | Motorola, Inc. | Active filter |
JPS60114016A (en) * | 1983-11-25 | 1985-06-20 | Nippon Gakki Seizo Kk | Filter circuit |
US4792977A (en) * | 1986-03-12 | 1988-12-20 | Beltone Electronics Corporation | Hearing aid circuit |
GB2192511B (en) * | 1986-07-11 | 1990-02-21 | Roger Frederick Laurence | Hearing aid |
US5075582A (en) * | 1989-03-30 | 1991-12-24 | Siemens Aktiengesellschaft | Integratable bandpass filter circuit |
-
1990
- 1990-11-07 AT AT0223790A patent/AT407103B/en not_active IP Right Cessation
-
1991
- 1991-10-23 US US07/781,769 patent/US5263089A/en not_active Expired - Fee Related
- 1991-10-24 CA CA002054136A patent/CA2054136C/en not_active Expired - Fee Related
- 1991-11-06 DK DK91890266.9T patent/DK0485357T3/en active
- 1991-11-06 DE DE59107507T patent/DE59107507D1/en not_active Expired - Fee Related
- 1991-11-06 EP EP91890266A patent/EP0485357B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5909497A (en) * | 1996-10-10 | 1999-06-01 | Alexandrescu; Eugene | Programmable hearing aid instrument and programming method thereof |
Also Published As
Publication number | Publication date |
---|---|
ATA223790A (en) | 1994-04-15 |
CA2054136C (en) | 1995-04-25 |
DK0485357T3 (en) | 1996-05-20 |
US5263089A (en) | 1993-11-16 |
EP0485357A2 (en) | 1992-05-13 |
DE59107507D1 (en) | 1996-04-11 |
EP0485357A3 (en) | 1993-01-13 |
AT407103B (en) | 2000-12-27 |
EP0485357B1 (en) | 1996-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |